The first Tom and Jerry cartoon not to be produced by Joseph Barbara and William Hanna.
This was the first Western cartoon to be made in Eastern Europe (Eastern Bloc at that time).
This cartoon was originally going to be called "Dogging the Cat".
This is the only MGM cartoon to be written by Eli Bauer, a story man best known for his work on TerryToons.
According to Gene, the Cat did not have his brain swapped, he just had his animal instincts swapped.